Jahn was born in
Sandlack,
East Prussia (today
Sędławki, Poland), where she grew up. From 1934 to 1937, she attended school in
Berlin and began her studies in chemistry at the
Ludwig-Maximilians-Universität München in 1940. There, Jahn became a close friend of
Hans Conrad Leipelt and a member of the
White Rose resistance group. After
Hans and
Sophie Scholl and
Christoph Probst had been imprisoned, she continued to publish the Scholl leaflets and collected money to aid the widow of
Kurt Huber. In October 1943, she was also arrested by the
Gestapo for treason and sentenced to 12 years' imprisonment by the
Volksgerichtshof in 1944. She served 1.5 years of that sentence before the war ended. After her liberation, she studied medicine at the
University of Tübingen and worked as a physician in
Bad Tölz in Bavaria, Germany. In 1987, she was a founding member of the White Rose Foundation; she was a member of the executive board until 2002. Her conviction was officially overturned on 8 September 2009 by the German Parliament when it cleared all World War II convictions for treason. Jahn died in
Bad Tölz on 22 June 2010, at the age of 92. == Remembrance ==